WO2017183056A1

WO2017183056A1 - Locking structure for cover covering handle seat

Info

Publication number: WO2017183056A1
Application number: PCT/JP2016/002076
Authority: WO
Inventors: 満堀内
Original assignee: 株式会社久力製作所
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2017-10-26
Also published as: US10920450B2; CN109072629A; US20190211580A1; JP6583978B2; SG11201809068VA; CN109072629B; JPWO2017183056A1

Abstract

Provided is a locking structure for a cover that covers a handle seat, the locking structure allowing locking and unlocking between the handle seat and the cover by a locking means to be easily implemented, and allowing a locked state therebetween to be surely maintained in order to prevent the cover from coming off. The locking structure for a cover for covering and hiding the front surface and the peripheral surface of a handle seat includes: a cover locking means having a cover side locking part formed at the cover and a handle seat side locking part formed at the handle seat; and a rotation preventing means including a latch, the latch being provided at the position of a groove part that forms the handle seat side locking part and biased to be able to advance/withdraw along an axial line from the center of the handle seat to the outer peripheral surface and toward a tip end thereof, and the latch having, at the tip end, a locking part raised from the bottom of the groove part to protrude in the groove part and abut against the cover side locking part provided to protrude at the cover when the locking means is in a locked state.

Description

Locking structure of the cover that covers the handle seat

The present invention relates to a disc mounted on an inner side surface and an outer side surface of a door to support a square core having a handle such as a lever handle or a door knob attached to an end for operating a latch lock attached to the door. It is related with the latching structure of the cover which covers a shape-like handle seat.

Conventionally, a disc-shaped handle that is mounted on the inner side surface and the outer side surface of the door to support a square core having a lever handle for operating a latch lock attached to the door or a handle of the door knob attached to the end. A seat is used, and this handle seat is often fixed to the lock body attached to the door with bolts etc., so those bolts are exposed on the surface, and furthermore, the handle is fixed Since the hub etc. that hold the square core are also exposed, the outer appearance is enhanced by covering the front and outer peripheral surfaces after attaching to the door after attaching it to the door, especially recently the cover and handle according to the door etc. The cover is one of the most important parts.

By the way, it goes without saying that the cover covering the handle seat is easy to mount, and it is required to be easily removable when repairing or replacing a lock, etc., and the appearance is beautiful as described above. For example, as shown in Utility Model Registration No. 3096257, Japanese Patent Application Laid-Open No. 2002-120996, etc., for example, a protrusion provided on the inner side surface of the cover is provided on the outer surface of the handle seat. It is generally fixed using an engaging protrusion, such as engaging with a concave or stepped portion, or engaging a protrusion provided on the cover with an annular step provided on the rear edge of the handle seat. Is.

Many of these covers are rotated in the circumferential direction with the cover once covered at a predetermined circumferential position of the handle seat, and the protrusions are engaged with the recesses or stepped portions of the handle seat and rotated in the opposite direction. By releasing the engagement, it can be easily engaged at the time of installation as described above, and can be easily released at the time of repair or replacement, and it is not forcibly released by using a tool for removal. There is no worry that it will sometimes be deformed or scratched.

However, as described above, since it is necessary to easily engage and disengage, there is a problem that the locked state is formed loosely, and there is a problem that the cover rotates when used, and the cover is removed. However, there is also a problem that the cover is easily rotated by the operation of the handle when the handle is also used to prevent the handle from coming off, and the handle is detached when the cover is rotated.

Noto 3096257 JP 2002-120996 A

The present invention has been made to solve the above problems, and it goes without saying that it is easy to engage and disengage the locking means between the handle seat and the cover when the cover is put on as well as the conventional cover. It is an object of the present invention to provide a cover locking structure that covers a handle seat that reliably holds the locked state when the cover is placed and does not come off.

In order to solve the above-mentioned problems, the present invention provides a circle mounted to face the inner side surface and the outer side surface of a door to support a square core provided with a handle for operating a lock mechanism arranged inside the door. A cover locking structure for covering a front surface and a peripheral surface of a plate-shaped handle seat, wherein a plurality of protrusion-shaped protrusions projecting inward at intervals in the circumferential direction at the opening edge of the cover. A cover side locking portion; a groove portion penetrating from the front surface to the rear surface into which the cover side locking portion formed on the cover can be inserted when the cover is covered; and a rotation direction of the groove portion. A handle seat formed from an engaging groove portion that is formed by hooking the cover-side engaging portion formed on the cover and is engaged with the cover when the covered cover is rotated from the front surface to the rear surface. A side lock In the position of the groove forming the handle seat side latching portion, the latch means is arranged so as to be movable back and forth along the axis extending from the center of the handle seat to the outer peripheral surface and urged in the distal direction. From a latch having an engaging portion that protrudes from the bottom surface of the groove portion at the tip and protrudes from the groove portion when the locking means is engaged and contacts the cover side locking portion protruding from the cover It has the rotation prevention means which becomes.

Further, in the present invention, when a tool insertion hole for immersing the latch into the handle seat is formed at a position where the inner surface of the body portion of the cover contacts the latch, the handle seat The rotation prevention state with the cover can be released.

In particular, the latch formed on the handle seat is arranged downward, and the appearance hole of the tool is not impaired by not exposing the insertion hole of the tool to the outer surface.

In addition, the present invention is particularly effective when the cover also serves to prevent the handle from coming off.

According to the present invention, it is easy to engage and disengage the locking means between the handle seat and the cover when covering the handle seat as in the case of the conventional cover, and when removing the cover. It is extremely effective when used for handle seats where the cover covers the handle seat that is easy to rotate by the operation of the handle and the cover that also covers the handle also prevents the handle from coming off. is there.

1 is a schematic sectional view showing a preferred embodiment of the present invention. The perspective view seen from the lower side in embodiment shown in FIG. FIG. 2 is an exploded perspective view of the handle seat in the embodiment shown in FIG. 1. FIG. 2 is a cross-sectional view of the embodiment shown in FIG. 1. Explanatory drawing which shows the use condition of embodiment shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a preferred embodiment of the present invention, for example, a door for indoor use, in which a lock mechanism 1 which is a box-type latch lock in which a latch bolt 11 can be moved up and down is embedded in a mounting groove 22 opened in a wooden mouth 21. 2 is an exploded perspective view showing a state in which the door 2 is used, and the

handle seats

3A and 3B used in the present invention are arranged to face the inner side surface 23 and the outer side surface 24 of the door 2 and are formed in the door 2 Thin bottomed cylindrical covers that are mounted in the same manner as conventional handle seats by

bolts

51, 51 and

screw cylinders

52, 52 through

holes

25, 25, and the

handle seats

3A, 3B have a U-shaped cross section. 4A and 4B are covered.

In particular, in the present embodiment, the square core 6 for operating the lock mechanism 1 is formed of two divided

square core members

6A and 6B, and a lever attached to the end of the

square core members

6A and 6B. This is different from a conventional type in which handles are attached to both ends of a single square core (not shown) in that the

handles

7A and 7B are held.

More specifically, the handle seats 3A (3B) according to the present embodiment are symmetrical to each other, and have a bottomed cylindrical shape with a thin shape as a whole. The bolt 51 shown in FIG. , 51 (or screw cylinders 52, 52) in which a

through hole

32, 32 is formed, and the square core member 6 </ b> A (6 </ b> B) is provided at the center of the handle seat body 31 that is rotatably accommodated in the handle seat body 31. A hub 33 formed in the insertion hole and a return spring 34 for rotating the hub 33 in the operation direction and the reverse direction are accommodated.

On the outer peripheral surface 35 of the handle seat body 31, there are four vertical and horizontal four directions perpendicular to each other at predetermined intervals in the circumferential direction at the opening edge 41 of the cover 4A (4B) at four vertical and horizontal directions. 4A (4B) each of which has a cover 4A (4B) is engaged by engaging the projecting cover

side latching portions

9a, 9b, 9c, 9d having end faces protruding inward at a predetermined arc width. Handle seat

side latching portions

8a, 8b, 8c, 8d having an arcuate groove are formed facing the cover side latching

portions

9a, 9b, 9c, 9d.

Each handle seat

side latching portion

8a, 8b, 8c, 8d formed on the outer peripheral surface 35 of the handle seat 3A (3B) is covered with the cover 4A (4B) when the cover seat 3A (3B) is covered. 4A (4B), the cover side latching

portions

9a, 9b, 9c, 9d can be inserted into the groove 38 passing from the front surface 36 to the rear surface 37. The cover side latching

portions

9a, 9b, 9c, 9d formed on the cover 4A (4B) when the covered cover is rotated from the front surface 36 to the rear surface 37 are respectively inserted and inserted. The cover 4A (4B) is formed from the engaging groove part 39 which engages. In the drawings, reference numeral 40 denotes a cover plate that covers the opening of the handle seat body 31.

Further, the present embodiment is capable of advancing and retreating along the axis d from the center toward the outer peripheral surface 35 at the position of the groove portion 38 that forms the locking portion 8 formed below the handle seat side of the handle seat body 31. Arranged in the groove 38 is a rotation prevention means 10 comprising a latch having an engaging portion 102 which is urged by the coil spring 101 in the distal direction and protrudes from the bottom surface of the groove 38 at the distal end.

Further, in the present embodiment, the shaft member 71 fitted to the base end of the handle 7A (7B) is passed through the through hole 42 formed in the cover 4A (4B) and fixed by the stop ring 43 so as to be rotatable. The base end of the square core member 6A (6B) is inserted into and supported by a square hole 72 formed at the tip of the shaft member 71 via a coil spring 73 so as not to rotate.

In the present embodiment having the above configuration, the handle 7A (7B) and the square core member are added to the handle seat 3A (3B) installed on the inner surface 23 and the outer surface 24 of the door 2 as shown in FIG. The cover 4A (4B) provided with 6A (6B) is covered and attached.

The present embodiment is used, for example, in a hotel door, and the hub 12 on the indoor side into which the square core member 6A on the indoor side is inserted in the hub case 13 of the hub 12 of the lock mechanism 1 is used. 12A and an outdoor hub member 12B into which the outdoor square core member 6B is inserted. The hub member 12A is rotatable and arranged in the hub case 13 like a normal hub. The latch bolt 11 is engaged with the latch bolt 11, and the lever-like handle 7 A attached to the end of the indoor square core 6 A is rotated to bring the latch bolt 11 into and out of lock and unlocking. On the other hand, the hub member 12B is fixed to the hub case 13, and the lever-like handle 7B attached to the end of the outdoor square core 6B cannot be rotated. From the side is a structure that can not be unlocked.

Next, the operation when the present embodiment is used will be described with reference to FIG.

FIG. 5A shows a state in which the cover 4A (4B) is put on the handle seat 3A (3B) arranged on the door 2 shown in FIG. 1, and when the cover 4A (4B) is put on, the cover 4A is shown. (4B) The cover

side latching portions

9a, 9b, 9c, 9d formed on the handle seat

side latching portions

8a, 8b, 8c formed on the handle seat 3A (3B) arranged at positions facing them. , 8d.

At this time, the engaging portion 102 formed at the tip of the rotation preventing means 10 comprising a latch installed at the position of the groove 38 of the handle seat side locking portion 8b below the handle seat 3A (3B) is the cover 4A ( 4B) is pressed by the cover-side latching portion 9b to be immersed in the bottom surface of the groove portion 38, and the cover-side latching portion 9b is inserted into the groove portion 38 without any trouble.

In particular, in the present embodiment, since the square core member 6A (6B) and the handle 7A (7B) are attached to the cover 4A (4B) in advance, the cover 4A (4B) is put on the handle seat 3A (3B). The square core member 6A (6B) is not only inserted into the hub 33 arranged on the handle seat 3A (3B) and the lock mechanism 1 installed on the door 2 shown in FIG. There is no need for fixing (7B).

In the present embodiment, the lower end 103 of the engaging portion 102 formed at the tip of the rotation preventing means 10 on the insertion side end face of the cover 4A (4B) is formed in a chamfered shape, so that the cover 4A ( 4B) is simply put on the handle seat 3A (3B), the engaging portion 102 formed at the tip of the rotation preventing means 10 protruding into the groove 38 has the cover side locking portion 9b protruding from the bottom surface of the groove 38. The engagement portion 102 of the rotation preventing means 10 is naturally pushed in the proximal direction along the chamfer and is inserted into the groove portion 38 as a state where the engagement portion 102 is inserted into the groove portion 38. In this case, the cover side latching portion 9b is inserted into the groove portion 38 by pressing the engaging portion 102 with a finger or a tool in advance so that the groove portion 38 is immersed.

Then, as shown in FIG. 5B, when the cover 4A (4B) covering the handle seat 3A (3B) is rotated in the locking direction, the cover

side locking portions

9a, 9b, 9c, 9d shifts from the groove portion 38 forming the handle seat

side latching portions

8a, 8b, 8c, 8d to the engaging groove portion 39 continuous to the groove portion 38, and when further rotated, as shown in FIG. The cover

side latching portions

9a, 9b, 9c, 9d are fitted into the engaging groove 39 to cover the

side latching portions

9a, 9b, 9c, 9d and the handle seat

side latching portions

8a, 8b, 8c, The engaging means formed by 8d is engaged, and in particular, the cover side engaging portion 9b moves to the engaging groove 39 to open the groove 38, so that the cover side engaging portion 9b is immersed in the groove 38. The engagement portion 102 of the rotation preventing means that has been moved is the groove portion 3. The cover 3A (4B) covering the handle seat 4A (4B) is removed because the cover 4A (4B) is prevented from rotating by coming into contact with the cover side locking portion 9b that has shifted to the engaging groove 39 and protruding to the engagement groove 39. There is no.

Further, in the present embodiment, the engagement portion 102 is inserted into the handle seat (4B) at a position where the inner surface of the outer periphery of the cover 4A (4B) contacts the engagement portion 102 of the rotation preventing means 10. An insertion hole 105 for the thin rod-shaped tool 104 is formed.

Accordingly, in order to release the cover

side latching portions

9a, 9b, 9c, 9d and the handle seat

side latching portions

8a, 8b, 8c, 8d, rotate at the tip of the tool 104 inserted into the insertion hole 105. The engagement portion 102 of the blocking means 10 is pressed against the urging force of the coil spring 101 toward the bottom surface of the groove portion 38 to release the contact state of the engagement portion 102 with the cover-side locking portion 9b, and the cover 4A. (4B) is permitted to rotate in the counter-engagement direction, and as shown in FIG. 5 (a), each cover

side locking portion

9a, 9b, 9c, 9d corresponds to each handle seat side locking portion 8a. , 8b, 8c, 8d, the cover 4A (4B) can be extracted very easily by pulling it out in a state of being inserted into the groove 38, so that repair and replacement of parts and the like are also very simple.

In particular, in the present embodiment, the end surfaces of the cover 4A (4B) that protrude inward at the four vertical and horizontal left and right sides of the opening edge 41 of the cover 4A (4B) having a predetermined interval in the circumferential direction are arc-shaped. The cover-

side locking portions

9a, 9b, 9c, 9d having a width of 5 mm have a constant arrangement interval, but for example, only the cover-side locking portion 9d is formed long and the cover-side locking portion 9d. The handle seat

side latching portions

8a, 8b, 8c, and 8d that are formed opposite to each other also have a handle seat side latching portion 8d that is long to match the cover side latching portion 9d, and the cover 4A (4B). The locking position in the rotation direction is regulated. Therefore, in the present embodiment, the rotation preventing means 10 is necessarily arranged on the lower side, and the engaging portion 102 formed on the cover 4A (4B) is immersed in the handle seat (4B). The insertion hole 105 of the thin rod-shaped tool 104 is located in the lower invisible portion, and there is no fear of deteriorating the aesthetic appearance.

In the present embodiment, the cover-

side latching portions

9a, 9b, 9c, 9d and the handle seat-

side latching portions

8a, 8b, 8c, 8d are arranged at a uniform interval, and uniform and stable latching is performed on the entire periphery. Although a state can be formed, the intervals between the cover

side locking portions

9a, 9b, 9c, 9d and the handle seat

side locking portions

8a, 8b, 8c, 8d that are locked to each other are not uniform. May be positioned (not shown).

As described above, the present embodiment is not only easy and quick to install, but also easy to remove, and there is no fear of deforming or damaging the cover 4A (4B) during removal.

In the present embodiment, in the hub case 13, the hub 12 is inserted in the indoor side square core member 6A, and the indoor side hub member 12A and the outdoor side square core member 6B are inserted in the chamber. The outer hub member 12B is divided into two parts and the outdoor hub member 12B is fixed to the hub case 13 to restrict the operation of the handle 7B from the outdoor side. By adopting the same structure as the hub member 12A, the structure can be locked and unlocked from the inside and outside, so that it can be used for various purposes.

Further, in the present embodiment, the cover 4A (4B) provided with the handle 7A (7B) in advance is shown. However, the conventional handle seat includes the conventional handle seat that fixes the handle to both ends of the square core to be inserted later. It goes without saying that other types of handle seats can be similarly implemented.

1 lock mechanism, 2 door, 3A handle seat, 3B handle seat, 4A cover, 4B cover, 6 square core, 6A square core member, 6B square core member, 7A handle, 7B handle, 8a, 8b, 8c, 8d handle seat Side locking part, 9a, 9b, 9c, 9d Cover side locking part, 10 rotation prevention means, 11 latch bolt, 12 hub, 12A hub member, 12B hub member, 13 hub case, 21 wooden mouth, 22 mounting groove, 23 inside Side surface, 24 outer surface, 31 handle seat body, 32 through hole, 33 hub, 34 return spring, 35 outer peripheral surface, 36 front surface, 37 rear surface, 38 groove portion, 39 engagement groove portion, 40 lid plate, 41 opening edge, 42 Through hole, 43 retaining ring, 51 bolt, 52 screw cylinder, 71 shaft member, 72 square hole, 73 coil spring, 101 coil spring, 102 engaging portion, 103 lower end, 104 Tool, 105 insertion hole, 331 hub case, d axis

Claims

Covers the front and peripheral surfaces of a disk-shaped handle seat mounted to face the inner and outer surfaces of the door to support a square core provided with a handle for operating a lock mechanism disposed inside the door. A cover covering structure for covering,
A plurality of protrusion-like cover side latching portions protruding inward at intervals in the circumferential direction at the opening edge of the cover, and a cover side latching portion formed on the cover when the cover is covered A groove that penetrates from the front surface to the rear surface that can be inserted and a rotation direction of the groove portion, and is formed on the cover from the front surface of the handle seat to the rear surface. A cover locking means comprising a handle seat side locking portion formed from a locking groove portion into which the cover side locking portion is inserted and the cover is locked;
At the position of the groove forming the handle seat side latching portion, it is disposed so as to be able to advance and retract along the axis extending from the center of the handle seat toward the outer peripheral surface and to be biased in the distal direction, and from the bottom surface of the groove to the distal end. Rotation preventing means comprising a latch having an engaging portion that protrudes and protrudes into the groove and protrudes from the cover when the locking means is engaged, and is brought into contact with the cover side locking portion. A cover locking structure that covers the handle seat.
The insertion hole of the tool for making the said engaging part immerse in a handle seat in the position where the inner surface of the trunk | drum in the said cover contact | abuts the engaging part of the said rotation prevention means is formed. 1. A cover locking structure that covers the handle seat according to 1.
3. The cover locking structure for covering the handle seat according to claim 1, wherein the rotation preventing means disposed on the handle seat is disposed at a lower position.
4. The cover locking structure for covering a handle seat according to claim 1, wherein the cover also serves to prevent the handle from coming off.